Questions tagged [java]
Java is a programming language originally developed by Sun Microsystems. Questions here should be about the installation, configuration and troubleshooting a JVM (Java Virtual Machine) or a JRE (Java Runtime Environment). Programming questions (unless directly related to Ubuntu) should be asked on StackOverflow.com.
3,204
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systemctl service starts executable but shuts down right after it
The launch-service.sh file should be executed by the phantombot.service file.
I looked in systemctl service phantombot if the service actually started. The service starts and gets closed after about ...
- 131
1
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0
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Running WSO2 IS on Ubuntu - CARBON cannot execute Java
I'm using Ubuntu 16.04 64-bit. I'm logged in to Ubuntu as user1. I installed Oracle JDK version jdk1.8.0_144 to /usr/local/java and set symlinks as
$ sudo update-alternatives --install "/usr/bin/java"...
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1
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JAVA_HOME variable shows a blank line on the terminal
I'm using Ubuntu 16.04 64-bit. I'm logged in to Ubuntu as user1. I installed Oracle JDK version jdk1.8.0_144 to /usr/local/java and set symlinks as
$ sudo update-alternatives --install "/usr/bin/java"...
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2
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0
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675
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Ubuntu 17.04 - JDK 9 with IntelliJ IDEA 2017.2.3 issue
To make it simple,
When I tried OpenJDK 9, IntelliJ IDEA won't startup, just showing an error dialog saying something like
com.intellij.ide.plugins.PluginManager$StartupAbortedException: java.lang....
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1
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493
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Preferred method for installing Oracle Sun JAVA in 16.04.3 LTS?
Based on Google searches I've found two methods:
I successfully used the method described via http://www.duinsoft.nl/packages.php?t=en previously in Ubuntu 14.04.1 LTS:
Add the duinsoft repository:
$...
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2
votes
1
answer
1k
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How to fix broken package manager - java oracle
Whenever I try to install anything, it fails with this the following:
Fetched 2,203 kB in 6s (352 kB/s) ...
- 174
0
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1
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637
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How to remove JDK and keep JRE in ubuntu 16.04
I've installed JDK-8 on my VPS with the command:
sudo apt-get install openjdk-8-jdk
But I just realized I don't really need JDK and JRE is enough for me since I develope my projects on my laptop in ...
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0
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1
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808
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Sun Java install download hangs.. how to diagnose this? [duplicate]
I'm looking for suggestions on how to troubleshoot this.
I am running VMWare 6.5 on a Supermicro blade server about 2000 miles away, with Ubuntu 16.04.3 LTS installed as a VM.
I know that the ...
- 173
0
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1
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2k
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error when using `sudo update alternatives` [duplicate]
$ sudo update-alternatives --install "usr/bin/java" "java" "usr/lib/java/jdk1.8.0_144/bin/java" 1
update-alternatives: error: alternative link is not absolute as it should be: usr/bin/java
Help me ...
- 81
0
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1
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103
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What is the required IntelliJ environment for Ubuntu? [closed]
I asked this here in hopes that someone well-versed in both IntelliJ and Ubuntu can shed some light on this. I went through hell trying to make a Java program run on Eclipse/IntelliJ because of one ...
- 51
2
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0
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447
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Netbeans 8.1 randomly crashes on Ubuntu 17.04 GNOME (Wayland)
I have OpenJDK 8 and Netbeans 8.1 installed on Ubuntu GNOME 17.04,
Wayland. (everything installed from apt, No PPA).
The crash is not observable on GNOME Legacy session. Only on Wayland.
More ...
0
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0
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128
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Completely new to Ubuntu - need MATLAB installed
I found that you can install MATLAB, a MathWorks software, to Chromebooks if the Chromebook has an Intel (non-ARM) processor and you install Linux.
I've installed Ubuntu.
NetSurf didn't have Java ...
2
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0
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138
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memory problem Ubuntu 14.04.4 server
I've a problem with Ubuntu 14.04.4 Server. On this server it's running java (7 process that have set -Xms32M -Xmx512M) and corosync, every 4 months (more or less) fills the memory (up to 100%) and ...
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0
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1
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2k
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Require help installing a .jar file. (14.04)
I need help installing a .jar file, http://chunky.llbit.se/download.html, which is causing problems for me. I have Openjdk 7 and 6 and I got 8 from another, non official place. When I double click the ...
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2
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1
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2k
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netbeans won't display projects window
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=17.04
DISTRIB_CODENAME=zesty
DISTRIB_DESCRIPTION="Ubuntu 17.04"
$ java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)...
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-1
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3
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2k
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Unable to set JAVA_HOMEin Ubuntu with space in path in /etc/environment
I am annoyed trying this but all I am trying to do is set JAVA_HOME in /etc/environment file in Bash shell on Windows which is being offered now with Windows. My local Java is at C:\Program Files\Java\...
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0
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0
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378
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Run Java Applet
I would like to use a JNLP file but it seems like I can't get Firefox (or Chrome) to use the Java Plugin (symbolic links to the libnpjp2.so file don't work).
So how can I use JNLP files?
Update
Java ...
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3
votes
3
answers
40k
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Java JRE 8 install
I am trying to install Java JRE 8 on my Linux machine (Ubuntu 14.04 (Trusty Tahr)). I've done two things:
The first was follow Java's help page. I downloaded the tarball and installed it using the ...
- 353
0
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2
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2k
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High CPU load on server with no processes running
I'm working on one of my university's servers, where I've been given space on the server and allocated 40 cores.
Currently, according to top, I have no processes running except the root processes. ...
0
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0
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73
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Trouble installing openjdk8 after accepting license agreement
Trying to download openjdk8, I ran the command
sudo apt install openjdk-8-jre-headless
The package configuration told me to agree to the license agreement on oracle.com, which I believe I did.
Then ...
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1
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1
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941
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How to install openJDK 8 on 17.04 LTS? [duplicate]
When I ran this command:
sudo apt install openjdk-8-jre-headless
I keep getting this:
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the ...
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0
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0
answers
5k
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java.net.NoRouteToHostException: No route to host (Sqoop)
I am new to sqoop. I am trying to import the data from mysql(installed in windows)using sqoop but i am getting below error.
7/08/11 22:55:49 ERROR manager.SqlManager: Error executing statement: com....
4
votes
1
answer
9k
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Netbeans crashes and won't start
Netbeans, javac and Java were all working fine until I installed Java 9. Now:
thufir@doge:~$
thufir@doge:~$ sudo update-java-alternatives --list
java-1.8.0-openjdk-amd64 1081 /usr/lib/...
- 4,551
0
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0
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415
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Various errors while installing java 8 on Ubuntu 16.04 (64 bit) in VM [duplicate]
I am using Oracle VM Virtual Box (Version 5.1.18) to run Ubuntu 16.04. I am using proxy server . I have configured proxy settings in apt.conf and apt.config.In both these files my http proxy is set ...
- 1
4
votes
2
answers
729
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16.04 - openJDK 7 - Minecraft Won't Launch
Its used to work. However, when I press the play button on its launcher, it's keeps popping up with this output shown here
12
votes
2
answers
67k
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JVM errors when running minecraft
This is the output I am getting when I am playing minecraft.
Java HotSpot(TM) Server VM warning:
Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future ...
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0
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1
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409
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Installing JDK on Ubuntu?
i want to install jdk but it get this error :
download failed Oracle JDK 8 is NOT installed.
dpkg: error processing package oracle-java8-installer (--configure):
subprocess installed post-...
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0
votes
0
answers
433
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Unable to install Java on Ubuntu 17.04
prakash@prakash-Lenovo-B40-80:~$ sudo add-apt-repository -y ppa:webupd8team/javaTraceback (most recent call last):
File "/usr/bin/add-apt-repository", line 95, in <module>
sp = ...
3
votes
1
answer
1k
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ClamAV detects Malware : Java.Malware.Agent-6203119-0 FOUND
My ClamAV daily scan is detecting Malware from apache-maven library location.
So now I want to know if this is a false positive or a real alert.
Can some one help me how to figure it out this?
How ...
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0
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1
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66
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Err executing Eclipse Cpp in Ubuntu 14.04
I'm trying to install Eclipse cpp oxygen into Ubuntu 14.04. After extracting the file and executed [eclipse] executable file, i'm met with the following errors. Greatly appreciate any advice fr the ...
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1
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How to make jar file run automatically on system start [duplicate]
I am fololowing this link but this did not work for me .
My start up script is:
#!/bin/bash
java -jar AppDemo.jar
My stop script is:
#!/bin/bash
#Grabs and kill a process from the pidlist that ...
-2
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1
answer
75
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Java compiles but not Executes [closed]
I tried many ways to execute but it is showing the same error
Error: Could not find or load main class corePKI_Pkg.AppKeyUtil
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1
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895
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Making "java -jar OSBuddy.jar" an icon I can execute on my desktop? [duplicate]
Title says it all. I'm really really new with Linux stuff. Using Xfce/Crouton/Ubuntu etc.
If you can be as specific as possible, or linking me to a guide that breaks everything down step by step that ...
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0
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1
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4k
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Java class runs fine in IntelliJ but not from command line
I've compiled and run a simple Java file in IntelliJ. It contains a main method and one other small static method. It works perfectly every time.
However, whenever I try to run the java command on ...
1
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0
answers
270
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I need help understanding my service script starts multiple processes when run
I have been trying to get a java application run as a service.I used this spring framework guide After putting couple of scripts together from different sources, I ended up with something like below:
...
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0
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1
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57
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Why is java -version giving me this?
i uninstalled java using the commands:
sudo update-alternatives --remove "java" "/usr/lib/java/jdk1.8.0_131/bin/java"
sudo update-alternatives --remove "javac" "/usr/lib/java/jdk1.8.0_131/bin/javac"
...
- 11
2
votes
2
answers
21k
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How to install latest version Eclipse in Ubuntu-16.04 [duplicate]
I am getting older version of Eclipse when I install it from terminal, which is fine for C/C++ code, but I want to use java, basically for spring and maven, so I want a newer version.
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3
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1
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2k
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Which of these Paths should I use as the value of JAVA_HOME?
I am running Ubuntu 16.04. I have downloaded JDK 7.0 from Oracle website and untar'ed and put it in a folder /opt/JDK/, such that the final install directory is /opt/JDK/jdk1.7.0_80 Then I executed ...
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1
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793
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Unable to run java file
I have created a Java program:
public class Hello{
public static void main(String[] args) {
System.out.println("HEllo world");
}
}
My /etc/environment file looks like this:
PATH="/usr/local/...
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1
vote
1
answer
788
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How can I run simultaneously two different JVM in Ubuntu 16.04? [duplicate]
I need run two Java applications simultaneously but each one use requires different Java version. My default Java is 1.8, but I need to run one of the applications with version 1.6. Is there a way of ...
- 11
0
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1
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1k
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How do I open Minecraft.jar in Ubuntu? [duplicate]
Please do not mark as duplicate because I have been searching so long on other posts but they don't work for me. Please give me a step by step tutorial as an answer and be VERY SPECIFIC. I am not a ...
-1
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1
answer
364
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how do I clone the geckodriver executable with git? [closed]
This answer helped me with running Selenium.
now...why is the solution to use wget? How do you know which is the latest version? Why not use git?
- 4,551
1
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1
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262
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Error while installing MySQL even after changing the environment file
I am trying to install MySql in my Ubuntu 16.04 machine.
$ sudo apt-get install mysql-server
I am getting the following error messages.
/usr/sbin/update-info-dir: 3: export:
/usr/lib/jvm/java-8-...
1
vote
1
answer
881
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How do I undo the changes that oracle-java8-set-default makes?
I've uninstalled java from my system using the steps listed here: https://askubuntu.com/a/185250
However there are still some left over oracle paths in my PATH variable. I think this has been caused ...
- 113
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0
answers
889
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plasma desktop - Java IDE for Plasma Global Menu?
I installed KDE Plasma Desktop and I really like it. I like the global menu, but i noticed that so many apps are not compatible with it.
For Java coding, I have always used Eclipse, but even with ...
- 301
1
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2
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2k
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403: Forbidden error when trying to install oracle-java8-installer
I have a problem while trying to install third-party component Oracle Java 8. Every time I type:
$ sudo apt-get install oracle-java8-installer
I get this answer:
Reading package lists... Done
...
- 11
9
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4
answers
38k
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How to install JDK8 on Ubuntu 16?
I needed JDK 8 for Bazel. I ran sudo apt-get install openjdk-8* on a freshly built Ubuntu 16.04.02 machine, but after installation update-alternatives --config java show two paths:
/usr/lib/jvm/java-...
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48
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whenever i try to install anything via ppa method,it displays this error at the end.what should i do?
whenever i try to install anything via ppa method,it displays this error at the end.what should i do?
download failed >
Oracle JDK 7 is NOT installed.
dpkg: error processing package oracle-java7-...
0
votes
1
answer
1k
views
Java or Ubuntu Bug? (Problem with Minecraft)
As a lefty I wanted to change my Minecraft keybindings for walking to p, l, ö, ä so that I have the mouse in the left hand. Then I realized a bug: If I press ö or ä to walk to the right or backwards I ...
- 366
0
votes
3
answers
6k
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Installing Java without internet [duplicate]
I'm currently running Ubuntu GNOME 16.10 on my pc, and unfortunately, I don't have an internet connection. I really really need to be able to run java programs on it, because I've started learning ...
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